Figure 5From: Characterization of early and terminal complement proteins associated with polymorphonuclear leukocytes in vitro and in vivo after spinal cord injuryRat peritoneal PMNs are associated with the early proteins of the complement system but not C5b-9/MAC in vitro, shown by flow cytometry. Cells (5 × 106/ml) labeled with a FITC-conjugated anti-PMN antibody and a Cy5-conjugated antibody for C1q (B), C3 (C), or C5b-9 (D), or appropriate IgG controls (A) showed that nearly all cells were PMNs (B, C, & D), but only some cells were associated with C1q (B & E) and C3 (C & E); however, these cells were not associated with C5b-9/MAC (D & E). All flow cytometric gates were set using control IgG isotype labeled cells. # = significantly differ from IgG control. n = 3. Number of experiment replication = 3.Back to article page